iPadOS 9.0 (build 13A344) is an official Apple over-the-air update for the iPad 2 (GSM), released on 2015-09-16T18:02:07Z. The update package is 817.09 MB. This is a delta (partial) update that requires 8.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 34d418daa953613d007f6f34d3da991422c5ad8b.zip.